RCU Review: Goldberg Eagle 400

More On This Product

  • 1 Active For-Sale Ad!
  • Discussions on this Product
  • Show user ratings
  • Check for Retailers
    Contributed by: Mike Buzzeo | Published: December 2004 | Views: 19236 | email icon Email this Article | PDFpdf icon

    Review by: Mike Buzzeo (MinnFlyer) Email Me

    Carl Goldberg Products
    PO Box 818
    Oakwood, GA 30566
    Phone: 678-450-0085

    Window Media Player
    CGP Eagle 400 ARF

    Ease of Assembly:
    Completeness of Kit:
    Covering Quality:
    Basic Flight:
    Advanced Flight:  N/A
    Stall Characteristics:

    • Very Good Construction
    • Fast, Easy Assembly
    • Pre-Installed Hinges
    • Quality Covering
    • Preinstalled Pushrod Tubes
    • Spinner Included

    • Manual (See text)

    We all know that electrics are becoming more and more popular nowadays, and many manufacturers are jumping on the bandwagon with a myriad of electric offerings. But Carl Goldberg Products has taken the electrics in a new direction… or maybe I should say and old direction. Last year at Toledo, I saw one of the cutest ideas to come along in a long time. CGM's booth proudly displayed their two new electric offerings, which are essentially shrunken-down versions of their famous Eagle Trainer, and Tiger II.

    Carl Goldberg Products New
    Eagle and Tiger 400 Electrics

    Carl Goldberg Products has made both of these planes famous in a 40 Glow size, (and in the case of the Tiger, a 60 also), but these new electrics are "baby sisters" to their original counterparts. And they are adorable! The original the 40 size Eagle II is the plane I taught my son to fly on many years ago, so this should be fun. Let's get started!

    Name: Carl Goldberg Products Eagle 400 ARF

    Price: $109.99

    38 in. (92.5 cm)

    Wing area: 254 sq. in. (16.4 dm2)

    Weight per Mfg: Total: 478g w/ 2-cell Li-Poly

    Skill level:Beginner - Intermediate

    Radio Used:
    Futaba Sky Sport Transmitter

    (3) Micro Servos - Elevator, Aileron, Rudder

    ESC - Throttle

    Channels Used: 4 total - elevator, aileron, rudder, throttle

    Battery Used:
    1, 3-cell Kokam Li-Poly

    Required to Complete:

    • 4-channel radio with 3 micro servos and ESC
    • 2 or 3 cell Li-Poly Battery
    • CA glue
    • 30-Min epoxy
    • Standard building tools

    I have to admit that when RCU said they were sending a Goldberg Eagle, I was expecting a 40 size plane. So I was pretty surprised to see such a small box arrive. Once I opened the box, I realized that this was the same version that I had seen back at the Toledo show. "Cool" I thought, "It's one of those baby ones!"

    Regardless of its small size, all of the parts were well protected and individually wrapped, and the motor, drive train, prop and spinner are included.


    The manual was better than many I have seen, in that it seems to have been written in English (as opposed to having been translated into English), and gave good, clear instructions. However, I was disappointed in seeing that a few things were left out - specifically, it made mention of removing covering on top of the fuse for gluing the Fin on, but omitted removing covering from the Stab before gluing it to the Fuse.

    We start by assembling an Aileron Servo mount, and gluing it in place over the pre-cut wing hole. With that done, the servo is installed, and pushrods connected. (Note: I did have to slightly enlarge the hole for the servo)

    Next, covering is removed from the Stab where it will meet the Fuse, and the Stab is epoxied in place. Once the epoxy had cured, the same is done for the Fin.

    With the empennage in place, the control horns are glued in, and pushrods are installed through the pre-installed guide tubes.


    The Nose Gear wire slides in though the bottom of the engine compartment, and is secured to the firewall by means of nylon straps. All of the holes are pre-drilled, which made this operation a snap.

    And speaking of easy, the Main Gear simply slide into a slot in the fuse bottom, and a Plywood plug is installed to secure it. This was not only quick and easy, but the part-fit was excellent.


    Once the servos are mounted, the pushrods are connected by means of supplied micro connectors. The motor is then secured to the nose with a simple 4-screw clamp type bracket.

    Carl Goldberg Products suggests a 2 to 3 cell Li-Poly battery for the Eagle. I used a Kokam 3-cell 1500mah Li-Poly battery pack from FMA Direct because I went with the notion, "Always use the biggest whatever that the Manufacturer recommends". However, in this case, I think a 2-cell would work fine, as I never got past half throttle!

    With that, the Eagle is ready for it's maiden flight! (Wow, that was quick!)

    Maiden Flight

    The first time the winds were calm, I brought the Eagle 400 out to a local unused parking lot. She taxied pretty well considering there is no direct steering, and you needed to keep the speed up in order to steer at all, but the test proved that tracking during take off was possible.

    With that confirmed, I pointed her into the wind, and powered up.

    The Eagle zipped down the asphalt, and was airborne in no time. Trim adjustments were minimal, and soon she flew perfectly "hands off". This was really fun! It responded well to controls, although the ailerons weren't as sensitive as I would like. They worked fine for turning, but I knew I shouldn't even TRY to roll it. Loops, on the other hand were effortless! All in all, this was a really easy plane to fly. It was gentle, and not the least bit "hairy".

    After about 5 minutes, I decided to land it. I was so comfortable with this plane that I didn't even wonder "How will it land?" I simply brought it into a landing pattern, and set her down on the parking lot. Now, I'm not saying a beginner would do it as effortlessly, but for anyone who can fly, it's a breeze.

    The next time the weather was good, I brought the Eagle 400 out to shoot some videos. I increased the aileron throws a bit and it really helped the roll rate. I also decided to time the flights, and I was very impressed with the fact that the Kokam 3-cell Li-Poly battery packs were giving me over 10 minutes of flight time per charge.

    Carl Goldberg Models Eagle 400
    Windows Media Player Format

     border=  border=  border=
    High Resolution
    Med Resolution
    Low Resolution

    I have to admit that I am quite impressed with the overall performance. The Eagle 400 is easy to build, transport, and fly, and with flights in excess of 10 minutes per charge you actually have time to enjoy the flight.

    The Eagle 400 could be flown by anyone with basic skills, and I am proof that even an experienced flier can really enjoy the simplicity of this fun little airplane!

    (Note: If you have no R/C Flying experience, check with www,modelaircraft.org to find a club in your area for free instructions before attempting to fly any Radio Controlled Airplane)

    Carl Goldberg Products
    PO Box 818
    Oakwood, GA 30566
    Phone: 678-450-0085

    Futaba Corporation of America
    Distributed Exclusively in the U.S.A., Canada and Mexico by:
    Great Planes Model Distributors
    P.O. Box 9021; Champaign, IL 61826-9021
    Website: www.futaba-rc.com
    Product: Futaba 6VH SkySport

    Kokam Batteries.
    Website: www.fmadirect.com

    Comments on RCU Review: Goldberg Eagle 400

    Posted by: Girish59 on 12/13/2008
    Dear Sir, where can I buy Eagle 400 park flyer without the motor? Please advice. Thanks. Girish Kalvade Dubai, UAE E-mail girishykalvade@hotmail.com
    Posted by: MinnFlyer on 12/13/2008
    The Eagle 400 is not available without the motor
    Page: 1
    The comments, observations and conclusions made in this review are solely with respect to the particular item the editor reviewed and may not apply generally to similar products by the manufacturer. We cannot be responsible for any manufacturer defects in workmanship or other deficiencies in products like the one featured in the review.

    The World ModelsP-47D ThunderboltWhile not a new release from the World Models, I felt that their 1/7th scale P-47 deserved a proper product review. It's been...08/11/2014
    AresExera 130CXIt seems that everywhere I look, I see 'toy' helicopters. All the stores are carrying the latest models of the little coaxial...06/21/2014
    Heli-Max1SiThe 1Si is not short of impressive functionalities and it is with excitement that I saw one delivered at my door for review. ...05/26/2014
    Great PlanesU-Can-Do SF 3D GP/EPThis plane appears to be the latest in a line of ARF’s that can be assembled with either a nitro-powered engine or an electri...05/26/2014
    AresP-51D Mustang 350Ares, the airborne model division of the Firelands group, has recently extended its offering in parkflier airplanes with the ...04/28/2014
    Dave's R/C Electronics SafeStartSafeStart is an electronic safe guard that lets the modeler plug in his or her battery and have full control of the model, wi...04/27/2014
    SigXA41 Sbach 300 Flying the Sbach was pure fun. Once I had gotten comfortable with it, knife edge flight was great. A little down elevator was...04/21/2014
    AeroworksLaser ARFBefore the Extras, there was Leo Loudenslager's Laser 200 which dominated the US national aerobatic championship titles in th...04/21/2014
    AresTaylorcraft 130 (RTF) Meet the newest plane from Ares (pronounced Air-Ease). A state of the art, upgradeable Taylorcraft - it comes out of the box ...04/17/2014
    Maxford USAHansa-Brandenburg ARF with SkisHere's one of the later additions to Maxford USA's lineup. Maxford USA has been a great company to offer a wide array of airc...04/17/2014
    Best Pilotsrealistic looking pilot figuresI have been in the RC hobby for a long time and one thing that has always bothered me was that it has been next to impossible...03/23/2014
    SIGKadet Senior Sport EG ARFSIG's latest offering is the new Kadet Senior Sport EG. Like the Seniors of yesterday, this version offers stable and forgivi...03/23/2014
    Aeroworks20cc-30cc Trainer GT ARF-QBEvery year I attend the Weak Signals RC Show held in Toledo, Ohio, more commonly called "The Toledo Show". One booth I always...03/23/2014
    RedwingRCSBACH RedwingRC delivers their Sbach 342 in a 30cc size, developed specifically for 30cc power plants. The plane is available in 3 ...02/17/2014
    AresChronos CX100 Coaxial Helicopter RTThe recently released Ares Chronos CX100 Co-Axial helicopter has been touted as the 'Easiest, most affordable way to shoot vi...02/13/2014

      Return to Magazine Homepage

    RCUniverse is a service of Internet Brands, Inc. Copyright © 2001-2014.  Privacy Policy

    Search | Marketplace | Event Central | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

    Photo Gallery | Instructor Search | Field|Track|Marina Search | RCU Youtube Channel | | RCU Twitter!

    Member Locator | Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

    Products Videos WattFlyer.com RC Classifieds

    RCU4 | | 0 | 1 | 11:40:56 PM EST | NC